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Bizarre Parosteal Osteochondromatous Proliferation

A Novel Case Report of Recurrence in the Toe

Crystal Holmes Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan Medical School, Ann Arbor, MI.

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Palak Choksi Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan Medical School, Ann Arbor, MI.

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James S. Wrobel Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan Medical School, Ann Arbor, MI.

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Bizarre parosteal osteochondromatous proliferation (BPOP) is an uncommon reactive mesenchymal lesion mainly affecting the small bones of the hands and feet. They frequently occur in young adults. It is important to understand and differentiate BPOP from other lesions, especially because of its atypical microscopic features and tendency to recur. We present a case of a recurrent lesion involving the toe and discuss management options. To our knowledge, our current case report is the first in the literature to report a recurring BPOP lesion of the toe.

Corresponding author: Crystal Holmes, DPM, CWS, Department of Internal Medicine, University of Michigan Medical School, Domino's Farms, Lobby C, Suite 1300, 24 Frank Lloyd Wright Dr, PO Box 451, Ann Arbor, MI 48106. (E-mail: crysholm@umich.edu)